Soldering-tool.



H. P. MAGLAGAN.

SOLDERING TOOL.

APPLICATION FILED JUNE 2o, 1910.

Patented NOV. 14, 1911.

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h... v mw UNiTED sierras ernten HECTOR I. IMOLAGN, 0F PARK RIDGE, LLINOIS, ASSIGNOR 0F ONE-KMF T0 GEORGE IMI. WLLIS, 0F CHICAGO, ILLINOS.

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Specification of Letters Patent.

Application filed June 2G, 1910. Serial No. 56?,S52.

To all whom it may concern:

Be it known that I, Heeren P. MAGLAGAN, a citizen of the United States, residing at Park Ridge, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Soldering-Tools, or' which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention pertains to an improved construction of soldering tools adapted to be electrically heated and is characterized particularly by an increased etliciency of operation and simplicity of construction.

An important result secured by my invention is that the heating coil is so disposed that it is all equally effective in communieating heat to the parts to be heated thereby and furthermore this heating effect is the result entirely of radiation from the coil to the associated conducting metal, no resisting material being interposed between the two.

'The several drawings illustrating my in# vention are as follows:

Figure 1 is a longitudinal sectional view through my improved soldering tool; Fig. 2 is a side View of the metal conducting portion, showing the tip in its alternate postA tion; Fig. 3 is a sectional View taken along the `line 3, 3, Fig. 1; and Fig. 4 is a side view of the heating coil and its insulating support removed from the handle and the parts heated thereby. 1

Similar numerals refer to similar parts throughout the several views.

As shown in th'e drawings, my soldering tool consists essentially of a core 1 of insulating material such as asbestos wood, porcelain, lava, or any similar material having a high insulating value and considerable mechanical strength. The end of the core l is of a cylindrical conformation las shown at 2 and Sand of a diameter slightly smaller than the b ore of the conducting shell 4. The core 1 is cylindrical in form between the portions 2 and 3 and ot' somewhat smaller diameter, as indicated at 5, and upon this portion of reduced diameter a 'coil 6 is wound, which coil consists of bare wire having a very high specific resistance. One end l of the coil G is extended through a channel 7 in the core 1 to a terminal 8 secured to the upper end .of the core by means of a binding wire 9. bviously, equivalent securing means may be employed for retaining the terminalaB in place. The other end of the coil 6 is connected to the lower end of a rod or tube 10, which extends completely through the core 1 and forms at its upper end a terminal for receiving the conductor used to supply current to the tool. The rod or tube 10, besides conducting the current, also serves to reinforce the core 1 so that it may have the requisite mechanical strength.

The conducting member or shell 4 as above notedA is bored so that it will readily slip over the portions 2 and 3 of the core 1 and when in place against the shoulder between the body portion ofthe core and the portion 2 it is retained in place by the set screws 11. In this relation the coil 6 is sepa rated from the inside of the shell 4 by as small a distance as is practicable to prevent short-circuiting the coil through the shell 4, as a result of which, since the coil consists ofbut a single layer, every portion-of it is equally eiiective in communicating heat by radiation tothe shell.

The shell 4 is provided at its lower end with openings 12 and 13 drilled therein at right angles to receive a soldering tip 14 in either the position indicated in Fig. 1 or that shown in Fig. 2, and in either position the tip is held in place by a set screw 15.

The liole 13, extending longitudinally into the conducting shell 4, is stopped a sufficient distance from the bore formed for the heating coil so that a solid wall of metal is left between the hole 13 and the main bore of the shell, as a result of which the fumes resulting from the soldering operation as a result of the flux employed cannot pass through the outer end of the shell 4 and attack the coil 6.

The shell 4 and tip 14 are preferably made of copper to effectively conduct the heat from the coil 6 to the solder to be melted and, if desired, an insulating shell 15 may be disposed around the shell 4 to prevent loss of heat from the outer surface of the shell by radiation. As a result of the construction employed for securing the tip 14 in the outer end of the shell 4, the fumes of the soldering fluxes, as well as the fluxes themselves, it' they by accident enter the joint between these parts, cannot so corrode thetip or the shell that the removal of the tip is impossible, as a resultof which die tip may fe: lie formellen tween 'the zip i sull: in e, 3i-ation? Wih lie t to 'lie up lil.

The comi eter I" real 01' tube l0 und ilctm'fj 1S il" 19. iebula scribed the lian/lle 18 is, solely by nieuwe of lie forcing md mi' mbe i0K 0i' lient eiaiislii'ed i'oni limiille 1S is imllfeed i0 :a

.AS :L result of consten element iii elle ii'iamnei find Umb it possible um reni?, Since l l iuleii than is lle @use wii wound in sevevel l' mimi from each 0': :L nigh. speci which amis heal: is not been Constructed in the ii, sailed, :is z result of which coil which has been most th heat excessively :md ulinme By my 'construction im mit of the overliesi'ed7 and r my ienf essairy L0 i'epnii he coil. mi may reziflily be 110111:; mi. e. treme Simplicity the z u Y :is the facility with wllieli be given a rigid il 'ziniinei to the portions ad;

A further mi that mit little glie hea expansion is no smi placement 01"' alie iuiis to each @they to sluirit-i':i

Ylil/"bile l', have C irizwiculai Pili (le ne, limi-U13 st'ucimi, bul; il that will su a. wie (11F iiisulfi comprisi :i A on une ei d elf falle! Seem'erl :In zx, Soldering lool; i, :i @me mf insulating im'ei winni mi wie end @if ,auch i, shell sommeil lo ille wie lmiulle .sepzlzilml imm' ille {heren} only by nieuwe, "al: il ing lip, :md iii insulzmiig iji ille shell.

n. il un insulning' een, Limi fnleeiiil uylimlrieul perilous healing; coil \\'mm l in poiimi e" he @me i shell l." Coppel' lizu'ii pinclimlly eq ml (o i tinus 0i die Coi-e mide"- eniefl if.; the olli l?. En i soldering am ina [Aiming core liv1 tion nl; one und, of .fau (cylindrical poiieiis ma ing coil wound in s portion of jhe Core of v shell of copper luis/iii@ practically equal if; illie f *die ohei end the @o cai-fied, by the core r ming die eimiixais .v

4g lin a soldering' tool, tg., im insuli''ibig cure havin lion :it one end of simili c i'liiiclri :al pexfiioiis mlja, iw veil wound in :d Si

wie of supported by such portions, a handle se-'4 cured to the other end of the core, and a soldering tip removably secured to the shell in either of two positions.

9. In a soldering tool, the combination of an insulating core having a cylindrical portion at one end of smaller diameter than the cylindrical portions adjacent thereto, a heating coil Wound in a single layer upon the portion of the core of snialler-diarneter, a shell of copper having an internal diameter practically equal to the diameter of the portions of the core adjacent to the coil and supported by such portions, a handle secured to the other end of the core, connectors carried by the core inside of the handle forming the terminals of the coil, al soldering tip removably secured to the shell in either of ltWo positions, and an 'insulating tube surrounding the shell.

l0. In a soldering tool, an elongated insulating vcore, a metallic reinforcing meinber extending longitudinally of said core, a handle mounted on one end of said core, a resistance coil on the other end of said core, one end of 'said resistance coil being connected with the e'nd of said reinforcing rod, and a connector atsaid irst-nained end of said core With which the other end of said coil is connected.I

ll. In a soldering tool, an elongated insulating core, a reinforcing rod of metal extending through said core,A a handle having a pocket into which the end of said core extends, a coil of Wire Wound on the other end of said core, one end of said coil being connected with said reinforcing rod, a connector mounted upon said core in said pocket in said handle, said connector being connected with the other end of saidcoil, a conducting lead extending troni said connector, and a conducting lead extending from the end of said reinforcing rod inside said pocket.

l2. In a soldering tool, an elongated insulating core, a reinforcing rod of metalextending through said core, a handle having a pocket into which the end of said core eX- tends, a coil of Wire wound on the other end of said core, one end of said v-coil being connected with said reinforcing rod, a connector mounted u'pon said core in said pocket in said handle, said connector being connected with the other end of said coil, a conducting lead extending from said connector, aconduct-ing lead extending from' the-end of said reinforcing rod inside said pocket, and a heat conducting member surrounding but spaced away from said coil.

In witness whereof, I hereunto'subscribr iny name this 3rd day of June, A. D. V1910.

HECTOR P. ,MACLAGAN Witnesses:

ALBERT C. BELL, LEONARD E. Boeien.l 

